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Why not skip the external heating problem and buy batteries with built-in heating like the Discover AES or Helios? I got the heated AES rack mount; it was $50 more per module, which seems worth it. The Helios has the heater built in and I believe it has higher
energy density. </div>
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<div id="divRplyFwdMsg" dir="ltr"><font face="Calibri, sans-serif" style="font-size:11pt" color="#000000"><b>From:</b> RE-wrenches <re-wrenches-bounces@lists.re-wrenches.org> on behalf of Amanda Potter via RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Sent:</b> Tuesday, November 25, 2025 2:58 PM<br>
<b>To:</b> RE-wrenches <re-wrenches@lists.re-wrenches.org><br>
<b>Cc:</b> Amanda Potter <adirondackbattery@gmail.com><br>
<b>Subject:</b> [EXTERNAL] [RE-wrenches] LFP Battery Box Heating</font>
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Hello all,<br>
I’ve been reading past posts regarding Battery Box Heating & am trying to find a simple way to heat an OSB insulated box for various LFP type batteries.<br>
<br>
One Battery Company’s tech support said he uses (at his own home) a 110vac incandescent bulb plugged in to a thermostat (inexpensive) that lets him heat between 32 & 50 degrees F.<br>
<br>
I had somebody suggest the same thing with some Christmas lights.<br>
The box & inverter & C.C. are in an un- heated garage on the Canadian border of NY. ( It can, & does get pretty cold up here.)<br>
<br>
Any suggestions?<br>
<br>
It’s Off-Grid & the owners want their Starlink & Security Cameras to be on year round.<br>
<br>
Thanks ahead of time!<br>
And, Happy Turkey Day!<br>
<br>
Amanda Potter<br>
Energy Storage Systems<br>
NABCEP PVIP<br>
Adirondack Battery & Solar, LLC<br>
(315) 212-2114<br>
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